Home / 2,227.40-3,342.70-929.80

Finding the Fourth Proportional to 2,227.40, 3,342.70 and 929.80

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Solution

The fourth proportional to 2,227.40, 3,342.70 and 929.80 is: 1,395.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,227.40 : 3,342.70 = 929.80 : x
  2. Step 2: Convert to fraction form
    2,227.40/3,342.70 = 929.80/x
  3. Step 3: Cross multiply
    2,227.40x = 3,342.70 × 929.80
  4. Step 4: Simplify right side
    2,227.40x = 3,108,042.46
  5. Step 5: Solve for x
    x = 3,108,042.46/2,227.40
  6. Step 6: Final answer
    x = 1,395.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.